With
wrong sides tog join to turning ch of last row of front, sc in each st
across front, sc in each st around sides and bottom working through both
loops of both pieces working one extra sc in each bottom corner, sc
around top of back, sl st to finishing sc, finish off.

Insert
fries between front and back pieces, sew through all three layers. ((Fries worked in back sts are taller and
should be against back of box.)) Sew
several or all back fries to back of box.
Sew several of the taller front fries to the back fries loosely.

Loop

With
red join to back, 2 sts to the right of center, ch 5, sl st to the second st to
the left of center, finish off.